We inherit an equal amount of DNA from both parents but the paternal line dominates how the offspring develops into an adult.

You might resemble and act like your mother but mammals are genetically more like their father.

“We now know that mammals express more genetic variance from the father. So imagine that a certain kind of mutation is bad. If inherited from the mother, the gene wouldn’t be expressed as much as it would be if it were inherited from the father. So, the same bad mutation would have different consequences in disease if it were inherited from the mother or from the father.”